Passing an array as parameter from CMD to PowerShell give problems [duplicate] - powershell

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Passing string[] from batch file (which contains double quotes ") to powershell script
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Closed 3 years ago.
I have problems to pass an array to PowerShell script as parameter from CMD.
Here an example of the PS code:
[CmdletBinding()]
Param(
[string[]]$serverArray,
)
$serviceName = 'service1'
function getState {
Process {
$serverArray
foreach ($server in $serverArray) {
$servState = (Get-WmiObject Win32_Service -ComputerName $server -Filter "name='$serviceName'").State
}
}
getState
How I call script from CMD:
powershell -file .\script.ps1 -serverArray Server1,Server2
I get an error because $serverArray is not passed an array:
Server1,Server2
Get-WmiObject : The RPC server is unavailable. (Exception from HRESULT:
0x800706BA)
At C:\script.ps1:58 char:29
+ $servState = (Get-WmiObject <<<< Win32_Service -ComputerName $server -Filter "name='$serviceName'").State
+ CategoryInfo : InvalidOperation: (:) [Get-WmiObject], COMException
+ FullyQualifiedErrorId : GetWMICOMException,Microsoft.PowerShell.Commands.GetWmiObjectCommand
If I run the same command from a PowerShell window it works because the script accepts $serverArray as an array:
.\script.ps1 -serverArray Server1,Server2
Server1
Server2

Answer 1

CMD doesn't know anything about PowerShell arrays. You can pass the server list as individual tokens
powershell -File .\script.ps1 Server1 Server2
and use the automatic variable $args instead of a named parameter in your script:
foreach ($server in $args) {
...
}
or you can split the value of the parameter at commas in the body:
[CmdletBinding()]
Param(
[string]$Servers
)
$serverArray = $Servers -split ','

Answer 2

You can run this from command prompt:
powershell script.ps1 "Server1,Server2"
And if you add more parameters to your script :
powershell script.ps1 "Server1,Server2" "parameter2 argument" "parameter3 argument"